EP2210644A1 - Central fitting for a fire extinguisher - Google Patents

Central fitting for a fire extinguisher Download PDF

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Publication number
EP2210644A1
EP2210644A1 EP09100073A EP09100073A EP2210644A1 EP 2210644 A1 EP2210644 A1 EP 2210644A1 EP 09100073 A EP09100073 A EP 09100073A EP 09100073 A EP09100073 A EP 09100073A EP 2210644 A1 EP2210644 A1 EP 2210644A1
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EP
European Patent Office
Prior art keywords
base body
extinguishing agent
central
central valve
agent tank
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09100073A
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German (de)
French (fr)
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EP2210644B1 (en
Inventor
Harald Neumaerker
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Individual
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Individual
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Priority to AT10189113T priority Critical patent/ATE527030T1/en
Priority to EP09100073A priority patent/EP2210644B1/en
Priority to AT09100073T priority patent/ATE515293T1/en
Priority to EP10189113A priority patent/EP2277601B1/en
Publication of EP2210644A1 publication Critical patent/EP2210644A1/en
Application granted granted Critical
Publication of EP2210644B1 publication Critical patent/EP2210644B1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A62C13/70—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by means for releasing the pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories

Definitions

  • the invention relates to a central armature for a fire extinguisher, wherein a pressurized propellant causes a blowing out of an extinguishing agent from an extinguishing agent tank, with a provided with a number of terminals body, a piercing device for opening a print cartridge and with a piercing device securing, by hand from actuated fuse element.
  • a knock button is provided for the operation of the piercing device.
  • a fire extinguisher with a fitting with a punch button is for example from the EP-A-0 867 205 known.
  • the beat button located in this known fitting centrally in the upper apex of the central armature disguised and placed on the extinguishing agent tank cover.
  • the knock button is pressed down with a clenched fist, whereby the print cartridge is opened via a spike or the like and the fire extinguisher is set in readiness for extinguishing.
  • a trigger tab which engages under the beat button, prevents incorrect operation of the beat button.
  • the invention has for its object to perform a central valve for a fire extinguisher such that in the event of the occurrence of a high pressure in the extinguishing agent tank no bursting of the central valve can take place.
  • the base body is provided with at least one Sollberststelle at an area which is acted upon directly by the pressure prevailing in the interior of the extinguishing agent tank pressure.
  • the predetermined bursting point can be formed by a local weakening of the material or a local reduction of the wall thickness of the main body.
  • the predetermined bursting point is formed by a local depression, at the bottom of which a groove is provided.
  • the groove defines the local weakening of the material, which occurs when the internal pressure is too high.
  • the Sollberststelle In order to reliably avoid damage to surrounding objects and injury to persons when breaking the Sollberststelle, the Sollberststelle on the outside of a component of the central valve, such as a striking cap, covered.
  • the base body is made of a glass fiber reinforced, partly aromatic polyamide.
  • the figures show a central armature for a Aufladefeuerlöscher, in which a pressurized propellant, such as carbon dioxide or nitrogen, is housed in a print cartridge 11, which is located in the main tank, the extinguishing agent tank 10.
  • a pressurized propellant such as carbon dioxide or nitrogen
  • Suitable extinguishing agents for such fire extinguishers are liquids, such as water or foaming agents, but also extinguishing powder.
  • the extinguishing agent tank 10 and the print cartridge 11 are in Fig. 2 . 4 and 5 is indicated and reference is made to these components of the fire extinguisher in the following description only insofar as it is necessary for the understanding of the invention.
  • the central valve has a main body 1, which is firmly connected by means of a connection ring 2 with the extinguishing agent tank 10.
  • an adapter 3 is screwed onto the main body 1, to which the pressure cartridge 11 accommodated in the extinguishing agent tank 10 is connected.
  • the adapter 3 passing through opening 3a protrudes a Aufstechnadel 4, which is fixedly connected to a firing pin 5, which is arranged movably in an opening 1a of the base body 1 and fixedly connected to a striking cap 6, which in the outer region of Central faucet is located.
  • the striking cap 6 is in a known manner under the action of a helical compression spring 7, which is supported on the striking cap 6 and the base body 1.
  • the striking cap 6 and thus also the firing pin 5 are of a fuse element 8 in the unactuated position held.
  • a trained on the fuse element 8 ring 8a allows actuation of the element 8 by hand.
  • the central valve is further provided with a handle 9 which is mounted on the base body 1 by means of a non-designated bolt.
  • FIG. 4 shows, the opening 3a in the adapter 3 is connected via a formed in the base body 1 connecting channel 1b with a base body 1 formed on the connection 1c, to which a not shown blower tube is connected, which is housed in a known manner in the interior of the extinguishing agent tank 10.
  • a riser pipe 12 is indicated, which is screwed to the base body 1 at a further connection 1e.
  • Another connecting channel 1d in the base body 1 establishes a connection of the riser 12 to a connecting element 14, which is screwed to the base body 1 and to which a hose line, not shown, is attachable.
  • a Sollberststelle 15 is formed in the base body 1 from its underside.
  • This Sollberststelle 15 is formed in the base body 1, that it is acted upon directly by the pressure prevailing in the interior of the extinguishing agent tank 10 pressure and breaks at an impermissibly high internal pressure, so that the pressure in the interior of the extinguishing agent tank 10 is reduced.
  • a recess 15a in the base body 1 is formed at the Sollberststelle 15, at the bottom of the base body 1 has a small wall thickness, which is reduced to the center of the recess 15a such that in the center of the recess, a longitudinal groove 15b is formed , Along the groove bottom of the groove 15b, the wall thickness or material thickness of the main body 1 is the lowest.
  • the impact cap 6 is also formed as a cover 6b, which covers the base body 1 at that area at which the Sollberststelle 15 is provided.
  • the fire extinguisher By pulling on the ring 8a of the fuse element 8, the fire extinguisher is unlocked, with a seal 16, the in Fig. 1 can be seen, is destroyed.
  • the firing pin 5 By striking the striking cap 6, the firing pin 5 is moved downwardly or inwardly, whereby the Aufstechnadel 4, the print cartridge 11 opens so that the pressurized propellant flows from the print cartridge 11 via the connecting channel 1d and the blowpipe into the extinguishing agent tank 10.
  • the propellant mixes with the extinguishing agent and is forced through the riser 12 in the central valve and blown through the hose line connection 14.
  • the predetermined bursting point 15 on the main body 1 breaks down and the internal pressure is reduced without danger. Damage to the parts surrounding the fire extinguisher or injury to persons due to the mixture exiting at the rupture point 15 is prevented by the impact cap 6 covering the rupture point 15.
  • this is the groove 15b - that pressure is determined, which is intended to cause a break at this point.
  • the components of the central valve except the piercing needle 4, the spring 7, the bolt of the handle 9, the connecting ring 2, if necessary, the seal 16, are made of plastic.
  • connecting parts such as the adapter 3 and the hose connection 14, also the striking cap 6, the securing element 8 and the handle 9, plastic parts made of polyamide or polypropylene.
  • the main body 1 is made of a special plastic, a glass fiber reinforced, partly aromatic polyamide, for example Ultramid T KR 4355 410 (BASF). This material is characterized by a good chemical resistance, high toughness and strength, and an extremely low water absorption.

Abstract

The central armature has a base body (1) with multiple connections, a puncturing device for opening a print cartridge (11), and has a locking element (8) that locks the puncturing device. The base body is equipped with a reference burst point (15) at a region, which is charged directly from the dominant pressure within an extinguishing device (10). The base body is made of a glass reinforced fiber and partially aromatic polyamide.

Description

Die Erfindung betrifft eine Zentralarmatur für einen Feuerlöscher, bei welchem ein unter Druck stehendes Treibmittel ein Ausblasen eines Löschmittels aus einem Löschmitteltank bewirkt, mit einem mit einer Anzahl von Anschlüssen versehenen Grundkörper, einer Anstecheinrichtung zum Öffnen einer Druckpatrone und mit einem die Anstecheinrichtung sichernden, von Hand aus zu betätigenden Sicherungselement.The invention relates to a central armature for a fire extinguisher, wherein a pressurized propellant causes a blowing out of an extinguishing agent from an extinguishing agent tank, with a provided with a number of terminals body, a piercing device for opening a print cartridge and with a piercing device securing, by hand from actuated fuse element.

Bei vielen Typen von Zentralarmaturen ist für die Betätigung der Anstecheinrichtung ein Schlagknopf vorgesehen. Ein derartiger Feuerlöscher mit einer Armatur mit einem Schlagknopf ist beispielsweise aus der EP-A-0 867 205 bekannt. Der Schlagknopf befindet sich bei dieser bekannten Armatur zentral im oberen Scheitelbereich einer die Zentralarmatur verkleidenden und auf den Löschmitteltank aufgesetzten Abdeckhaube. Der Schlagknopf wird mit geballter Faust nach unten gedrückt, wodurch die Druckpatrone über einen Dorn oder dergleichen geöffnet wird und der Feuerlöscher in Löschbereitschaft versetzt wird. Eine Abzugslasche, die den Schlagknopf untergreift, verhindert eine Fehlbedienung des Schlagknopfes.In many types of central taps a knock button is provided for the operation of the piercing device. Such a fire extinguisher with a fitting with a punch button is for example from the EP-A-0 867 205 known. The beat button located in this known fitting centrally in the upper apex of the central armature disguised and placed on the extinguishing agent tank cover. The knock button is pressed down with a clenched fist, whereby the print cartridge is opened via a spike or the like and the fire extinguisher is set in readiness for extinguishing. A trigger tab, which engages under the beat button, prevents incorrect operation of the beat button.

Bei der aus der EP-A-1 044 704 bekannten Zentralarmatur ist kein Schlagknopf vorgesehen, sondern es wird nach dem Entfernen des Sicherungselementes die Anstecheinrichtung selbsttätig in eine Bewegung zum Durchstoßen des Dichtelementes der Druckpatrone versetzt.At the time of the EP-A-1 044 704 known central valve is not provided a knock button, but it is automatically offset after removal of the securing element, the piercing device into a movement for piercing the sealing element of the print cartridge.

Entsteht im Löschmitteltank, beispielsweise infolge Überfüllung mit Löschmittel, ein hoher Innendruck, besteht vor allem bei Armaturen mit geringer Festigkeit die Gefahr, dass sich der Überdruck nur unter explosionsartigem Bersten und Zerstören der Zentralarmatur abbauen kann. Die Gefahr von Beschädigungen an umgebenden Gegenständen sowie von Verletzungen von Personen ist groß.If a high internal pressure arises in the extinguishing agent tank, for example as a result of overfilling with extinguishing agent, there is the danger, above all with fittings of low strength, that the overpressure will only be explosive bursting and destroying can reduce the central valve. The risk of damage to surrounding objects and injuries to persons is great.

Der Erfindung liegt die Aufgabe zugrunde, eine Zentralarmatur für einen Feuerlöscher derart auszuführen, dass im Falle des Auftretens eines hohen Überdrucks im Löschmitteltank kein Zerbersten der Zentralarmatur stattfinden kann.The invention has for its object to perform a central valve for a fire extinguisher such that in the event of the occurrence of a high pressure in the extinguishing agent tank no bursting of the central valve can take place.

Gelöst wird die gestellte Aufgabe erfindungsgemäß dadurch, dass der Grundkörper an einem Bereich, welcher von dem im Inneren des Löschmitteltanks herrschenden Druck unmittelbar beaufschlagt wird, mit zumindest einer Sollberststelle ausgestattet ist.The object is achieved according to the invention in that the base body is provided with at least one Sollberststelle at an area which is acted upon directly by the pressure prevailing in the interior of the extinguishing agent tank pressure.

Auf diese Weise wird sichergestellt, dass sich ein im Tankinneren einstellender Überdruck rechtzeitig durch Aufbrechen der Sollberststelle gezielt abbauen lässt. Beschädigungen an Gegenständen und Verletzungen von Personen sind somit wirkungsvoll verhindert.In this way, it is ensured that an overpressure occurring in the interior of the tank can be deliberately reduced in a timely manner by breaking open the target bursting point. Damage to objects and injuries to persons are thus effectively prevented.

Auf besonders einfache und zweckmäßige Weise lässt sich die Sollberststelle von einer lokalen Materialschwächung bzw. einer lokalen Reduktion der Wandstärke des Grundkörpers bilden.In a particularly simple and expedient manner, the predetermined bursting point can be formed by a local weakening of the material or a local reduction of the wall thickness of the main body.

Bei einer bevorzugten Ausführungsform der Erfindung ist die Sollberststelle durch eine lokale Vertiefung, an deren Boden eine Rille vorgesehen ist, gebildet. Die Rille definiert die lokale Materialschwächung, welche bei zu hohem Innendruck aufgeht.In a preferred embodiment of the invention, the predetermined bursting point is formed by a local depression, at the bottom of which a groove is provided. The groove defines the local weakening of the material, which occurs when the internal pressure is too high.

Um beim Aufbrechen der Sollberststelle Schäden an umgebenden Gegenständen und Verletzungen von Personen zuverlässig zu vermeiden, ist die Sollberststelle an der Außenseite von einem Bestandteil der Zentralarmatur, beispielsweise einer Schlagkappe, überdeckt.In order to reliably avoid damage to surrounding objects and injury to persons when breaking the Sollberststelle, the Sollberststelle on the outside of a component of the central valve, such as a striking cap, covered.

Es ist zusätzlich vorteilhaft, für eine hohe Festigkeit der Zentralarmatur zu sorgen. Dies ist dann sicher gestellt, wenn der Grundkörper aus einem glasfaserverstärkten, teilaromatischen Polyamid hergestellt ist.It is additionally advantageous to provide a high strength of the central valve. This is ensured when the base body is made of a glass fiber reinforced, partly aromatic polyamide.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung werden nun anhand der Zeichnung, die ein Ausführungsbeispiel darstellt, näher beschrieben. Dabei zeigen

  • Fig. 1 eine Draufsicht auf eine Zentralarmatur gemäß der Erfindung,
  • Fig. 2 einen Schnitt durch die Zentralarmatur entlang der Linie II-II der Fig. 1,
  • Fig. 3 eine Ansicht der Unterseite der Zentralarmatur,
  • Fig. 4 einen Schnitt durch die Zentralarmatur entlang der Linie IV-IV der Fig. 3 und
  • Fig. 5 einen Schnitt durch die Zentralarmatur entlang der Linie V-V der Fig. 3.
Further features, advantages and details of the invention will now be described with reference to the drawing, which illustrates an embodiment in more detail. Show
  • Fig. 1 a top view of a central valve according to the invention,
  • Fig. 2 a section through the central valve along the line II-II of Fig. 1 .
  • Fig. 3 a view of the bottom of the central valve,
  • Fig. 4 a section through the central valve along the line IV-IV of Fig. 3 and
  • Fig. 5 a section through the central valve along the line VV of Fig. 3 ,

Die Figuren zeigen eine Zentralarmatur für einen Aufladefeuerlöscher, bei welchem ein unter Druck stehendes Treibmittel, beispielsweise Kohlendioxid oder Stickstoff, in einer Druckpatrone 11 untergebracht ist, die sich im Hauptbehälter, dem Löschmitteltank 10, befindet. Als Löschmittel für solche Feuerlöscher kommen Flüssigkeiten, wie Wasser oder Schaummittel, aber auch Löschpulver in Betracht. Der Löschmitteltank 10 und die Druckpatrone 11 sind in Fig. 2, 4 und 5 angedeutet und es wird auf diese Bestandteile des Feuerlöschers in der nachfolgenden Beschreibung nur insoweit Bezug genommen, als es für das Verständnis der Erfindung erforderlich ist.The figures show a central armature for a Aufladefeuerlöscher, in which a pressurized propellant, such as carbon dioxide or nitrogen, is housed in a print cartridge 11, which is located in the main tank, the extinguishing agent tank 10. Suitable extinguishing agents for such fire extinguishers are liquids, such as water or foaming agents, but also extinguishing powder. The extinguishing agent tank 10 and the print cartridge 11 are in Fig. 2 . 4 and 5 is indicated and reference is made to these components of the fire extinguisher in the following description only insofar as it is necessary for the understanding of the invention.

Die Zentralarmatur weist einen Grundkörper 1 auf, welcher mittels eines Anschlussringes 2 mit dem Löschmitteltank 10 fest verbunden wird. An der in den Löschmitteltank 10 ragenden Unterseite der Zentralarmatur ist am Grundkörper 1 ein Adapter 3 aufgeschraubt, an welchen die im Löschmitteltank 10 untergebrachte Druckpatrone 11 angeschlossen wird. In eine mittige, den Adapter 3 durchsetzende Öffnung 3a ragt eine Aufstechnadel 4, welche mit einem Schlagbolzen 5 fest verbunden ist, welcher in einer Öffnung 1a des Grundkörpers 1 bewegbar angeordnet ist und mit einer Schlagkappe 6 fest verbunden ist, welche sich im äußeren Bereich der Zentralarmatur befindet. Die Schlagkappe 6 steht in bekannter Weise unter der Wirkung einer Schraubendruckfeder 7, welche an der Schlagkappe 6 und am Grundkörper 1 abgestützt ist. Die Schlagkappe 6 und damit auch der Schlagbolzen 5 werden von einem Sicherungselement 8 in der unbetätigten Lage gehalten. Ein am Sicherungselement 8 ausgebildeter Ring 8a erlaubt eine Betätigung des Elementes 8 von Hand aus. Die Zentralarmatur ist ferner mit einem Handgriff 9 versehen, welcher am Grundkörper 1 mittels eines nicht bezeichneten Bolzens gelagert ist. Wie die Schnittdarstellung in Fig. 4 zeigt, ist die Öffnung 3a im Adapter 3 über einen im Grundkörper 1 ausgebildeten Verbindungskanal 1b mit einem am Grundkörper 1 ausgebildeten Anschluss 1c verbunden, an welchem ein nicht gezeigtes Blasrohr angeschlossen wird, welches in bekannter Weise im Inneren des Löschmitteltanks 10 untergebracht ist. In Fig. 2 ist weiters ein Steigrohr 12 angedeutet, welches am Grundkörper 1 an einem weiteren Anschluss 1e angeschraubt wird. Ein weiterer Verbindungskanal 1d im Grundkörper 1 stellt eine Verbindung des Steigrohres 12 zu einem Anschlusselement 14 her, welches am Grundkörper 1 angeschraubt ist und an welchem eine nicht gezeigte Schlauchleitung anbringbar ist.The central valve has a main body 1, which is firmly connected by means of a connection ring 2 with the extinguishing agent tank 10. At the bottom of the central armature projecting into the extinguishing agent tank 10, an adapter 3 is screwed onto the main body 1, to which the pressure cartridge 11 accommodated in the extinguishing agent tank 10 is connected. In a central, the adapter 3 passing through opening 3a protrudes a Aufstechnadel 4, which is fixedly connected to a firing pin 5, which is arranged movably in an opening 1a of the base body 1 and fixedly connected to a striking cap 6, which in the outer region of Central faucet is located. The striking cap 6 is in a known manner under the action of a helical compression spring 7, which is supported on the striking cap 6 and the base body 1. The striking cap 6 and thus also the firing pin 5 are of a fuse element 8 in the unactuated position held. A trained on the fuse element 8 ring 8a allows actuation of the element 8 by hand. The central valve is further provided with a handle 9 which is mounted on the base body 1 by means of a non-designated bolt. Like the sectional view in Fig. 4 shows, the opening 3a in the adapter 3 is connected via a formed in the base body 1 connecting channel 1b with a base body 1 formed on the connection 1c, to which a not shown blower tube is connected, which is housed in a known manner in the interior of the extinguishing agent tank 10. In Fig. 2 Furthermore, a riser pipe 12 is indicated, which is screwed to the base body 1 at a further connection 1e. Another connecting channel 1d in the base body 1 establishes a connection of the riser 12 to a connecting element 14, which is screwed to the base body 1 and to which a hose line, not shown, is attachable.

Wie insbesondere Fig. 3 und Fig. 5 zeigen, ist im Grundkörper 1 von seiner Unterseite her eine Sollberststelle 15 ausgebildet. Diese Sollberststelle 15 ist derart im Grundkörper 1 ausgebildet, dass sie von dem im Inneren des Löschmitteltanks 10 herrschenden Druck unmittelbar beaufschlagt wird und bei einem unzulässig hohen Innendruck aufbricht, sodass der Druck im Inneren des Löschmitteltanks 10 abgebaut wird. Bei der dargestellten Ausführungsform ist an der Sollberststelle 15 eine Vertiefung 15a im Grundkörper 1 ausgebildet, an deren Boden der Grundkörper 1 eine geringe Wandstärke aufweist, welche sich bis zur Mitte der Vertiefung 15a derart verringert, dass in der Mitte der Vertiefung eine Längsrille 15b ausgebildet ist. Entlang des Rillengrundes der Rille 15b ist die Wandstärke bzw. Materialstärke des Grundkörpers 1 am geringsten. An der Außenseite des Grundkörpers 1 ist es nicht erforderlich, die Sollberststelle 15 zu erkennen, sie kann jedoch, beispielsweise mittels einer Markierung oder einer Prägung, an der Außenseite des Grundkörpers 1 angedeutet sein. Wie insbesondere die Schnittdarstellung in Fig. 5 zeigt, ist die Schlagkappe 6 auch als Abdeckung 6b ausgebildet, welche den Grundkörper 1 an jenem Bereich überdeckt, an welchem die Sollberststelle 15 vorgesehen ist.In particular Fig. 3 and Fig. 5 show, a Sollberststelle 15 is formed in the base body 1 from its underside. This Sollberststelle 15 is formed in the base body 1, that it is acted upon directly by the pressure prevailing in the interior of the extinguishing agent tank 10 pressure and breaks at an impermissibly high internal pressure, so that the pressure in the interior of the extinguishing agent tank 10 is reduced. In the illustrated embodiment, a recess 15a in the base body 1 is formed at the Sollberststelle 15, at the bottom of the base body 1 has a small wall thickness, which is reduced to the center of the recess 15a such that in the center of the recess, a longitudinal groove 15b is formed , Along the groove bottom of the groove 15b, the wall thickness or material thickness of the main body 1 is the lowest. On the outside of the main body 1, it is not necessary to recognize the Sollberststelle 15, but it may, for example by means of a mark or an embossing, be indicated on the outside of the base body 1. As in particular the sectional view in Fig. 5 shows, the impact cap 6 is also formed as a cover 6b, which covers the base body 1 at that area at which the Sollberststelle 15 is provided.

Die Funktionsweise eines mit einer derartigen Zentralarmatur versehenen Feuerlöschers ist grundsätzlich an sich bekannt und wie folgt.The operation of a provided with such a central fire extinguisher is basically known per se and as follows.

Durch Ziehen am Ring 8a des Sicherungselementes 8 wird der Feuerlöscher entsichert, wobei eine Plombierung 16, die in Fig. 1 zu sehen ist, zerstört wird. Durch Schlagen auf die Schlagkappe 6 wird der Schlagbolzen 5 nach unten bzw. nach innen bewegt, wodurch die Aufstechnadel 4 die Druckpatrone 11 öffnet, sodass das unter Druck stehende Treibmittel aus der Druckpatrone 11 über den Verbindungskanal 1d und das Blasrohr in den Löschmitteltank 10 strömt. Das Treibmittel vermischt sich mit dem Löschmittel und wird über das Steigrohr 12 in die Zentralarmatur gedrückt und über den Schlauchleitungsanschluss 14 ausgeblasen.By pulling on the ring 8a of the fuse element 8, the fire extinguisher is unlocked, with a seal 16, the in Fig. 1 can be seen, is destroyed. By striking the striking cap 6, the firing pin 5 is moved downwardly or inwardly, whereby the Aufstechnadel 4, the print cartridge 11 opens so that the pressurized propellant flows from the print cartridge 11 via the connecting channel 1d and the blowpipe into the extinguishing agent tank 10. The propellant mixes with the extinguishing agent and is forced through the riser 12 in the central valve and blown through the hose line connection 14.

Sollte sich auf unzulässige und ungewollte Weise ein Überdruck im Inneren des Löschmitteltanks 10 aufbauen, bricht die Sollberststelle 15 am Grundkörper 1 auf und der Innendruck wird gefahrlos abgebaut. Schäden an den den Feuerlöscher umgebenden Teilen oder Verletzungen von Personen durch das an der Berststelle 15 austretende Gemisch werden durch die die Berststelle 15 überdeckende Schlagkappe 6 verhindert.Should an overpressure build up in the interior of the extinguishing agent tank 10 in an inadmissible and unintentional manner, the predetermined bursting point 15 on the main body 1 breaks down and the internal pressure is reduced without danger. Damage to the parts surrounding the fire extinguisher or injury to persons due to the mixture exiting at the rupture point 15 is prevented by the impact cap 6 covering the rupture point 15.

Durch die Wahl bzw. Auslegung der Wandstärke bzw. der Materialschwächung an der bzw. den Berststelle(n) - bei der dargestellten Ausführung ist dies die Rille 15b - wird jener Druck bestimmt, der ein Aufbrechen an dieser Stelle bewirken soll.By the choice or interpretation of the wall thickness or the material weakening at the or the rupture point (s) - in the illustrated embodiment, this is the groove 15b - that pressure is determined, which is intended to cause a break at this point.

Die Bestandteile der Zentralarmatur, ausgenommen die Anstechnadel 4, die Feder 7, der Bolzen des Handgriffes 9, der Anschlussring 2, gegebenenfalls die Plombierung 16, bestehen aus Kunststoff. Insbesondere sind Anschlussteile, wie der Adapter 3 und der Schlauchanschluss 14, ferner die Schlagkappe 6, das Sicherungselement 8 und der Handgriff 9, Kunststoffteile aus Polyamid oder Polypropylen. Der Grundkörper 1 ist aus einem speziellen Kunststoff, einem glasfaserverstärkten, teilaromatischen Polyamid, beispielsweise aus Ultramid T KR 4355 410 (BASF), hergestellt. Dieses Material zeichnet sich durch eine gute Chemikalienbeständigkeit, eine hohe Zähigkeit und Festigkeit, sowie eine äußerst geringe Wasseraufnahme aus.The components of the central valve, except the piercing needle 4, the spring 7, the bolt of the handle 9, the connecting ring 2, if necessary, the seal 16, are made of plastic. In particular, connecting parts, such as the adapter 3 and the hose connection 14, also the striking cap 6, the securing element 8 and the handle 9, plastic parts made of polyamide or polypropylene. The main body 1 is made of a special plastic, a glass fiber reinforced, partly aromatic polyamide, for example Ultramid T KR 4355 410 (BASF). This material is characterized by a good chemical resistance, high toughness and strength, and an extremely low water absorption.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

1.....1.....
Grundkörperbody
1a .......1a .......
Öffnungopening
1b.......1b .......
Verbindungskanalconnecting channel
1c.....1c .....
Anschlussconnection
1d .....1d .....
Verbindungskanalconnecting channel
1e .....1e .....
Anschlussconnection
2.........2 .........
AnschlussringAttachment ring
3 .....3 .....
Adapteradapter
4 .....4 .....
AufstechnadelAufstechnadel
5 .....5 .....
Schlagbolzenfiring pin
6 .....6 .....
Schlagknopfpush button
6a .....6a .....
Abdeckteilcover
7 .....7 .....
Federfeather
8 .....8th .....
Sicherungsschellesafety clamp
8a .....8a .....
Ringring
9 .....9 .....
Handgriffhandle
10 .....10 .....
LöschmitteltankThe extinguisher
11 .....11 .....
Druckpatroneprint cartridge
12 .....12 .....
Steigrohrriser
14 .....14 .....
Anschlusselementconnecting element
15 .....15 .....
Sollberststelletear-initiating
15a .....15a .....
Vertiefungdeepening
15b .....15b .....
Längsrillelongitudinal groove
16 .....16 .....
Plombierungsealing

Claims (5)

Zentralarmatur für einen Feuerlöscher, bei welchem ein unter Druck stehendes Treibmittel ein Ausblasen eines Löschmittels aus einem Löschmitteltank (10) bewirkt, mit einem mit einer Anzahl von Anschlüssen (1c, 1e, 14) versehenen Grundkörper (1), einer Anstecheinrichtung (4, 6) zum Öffnen einer Druckpatrone (11) und mit einem die Anstecheinrichtung (4, 6) sichernden, von Hand aus zu betätigenden Sicherungselement (8),
dadurch gekennzeichnet,
dass der Grundkörper (1) an einem Bereich, welcher von dem im Inneren des Löschmitteltanks (10) herrschenden Druck unmittelbar beaufschlagbar ist, mit zumindest einer Sollberststelle (15) ausgestattet ist.Central armature for a fire extinguisher, in which a pressurized propellant causes an extinguishing agent to be blown out of an extinguishing agent tank (10), to a main body (1), a piercing device (4, 6) provided with a number of connections (1c, 1e, 14) ) for opening a print cartridge (11) and with a securing element (8) securing the piercing device (4, 6) by hand,
characterized,
that the basic body (1) at a region of the prevailing inside the extinguishing agent tank (10) pressure is directly acted upon, is equipped with at least one tear-initiating (15). Zentralarmatur nach Anspruch 1, dadurch gekennzeichnet, dass die Sollberststelle (15) von einer lokalen Materialschwächung bzw. einer lokalen Reduktion der Wandstärke des Grundkörpers (1) gebildet ist.Central valve according to claim 1, characterized in that the Sollberststelle (15) of a local material weakening or a local reduction of the wall thickness of the base body (1) is formed. Zentralarmatur nach Anspruch 1 oder 2, dadurch gekennzeichnet, dadurch gekennzeichnet, dass die Sollberststelle (15) durch eine lokale Vertiefung (15a), an deren Boden eine Rille (15b) vorgesehen ist, gebildet ist.Central fitting according to claim 1 or 2, characterized in characterized in that the tear-initiating (15) by a local depression (15a) at the bottom of a groove (15b) is provided, is formed. Zentralarmatur nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Sollberststelle (15) an der Außenseite von einem Bestandteil der Zentralarmatur, beispielsweise einer Schlagkappe (6), überdeckt ist.Central valve according to one of claims 1 to 3, characterized in that the Sollberststelle (15) on the outside of a component of the central valve, such as a striking cap (6) is covered. Zentralarmatur nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Grundkörper (1) aus einem glasfaserverstärkten, teilaromatischen Polyamid hergestellt ist.Central valve according to one of claims 1 to 4, characterized in that the base body (1) is made of a glass fiber reinforced, partly aromatic polyamide.
EP09100073A 2009-01-26 2009-01-26 Central fitting for a fire extinguisher Active EP2210644B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT10189113T ATE527030T1 (en) 2009-01-26 2009-01-26 BASIC BODY OF A FIRE EXTINGUISHER CENTRAL FITTING
EP09100073A EP2210644B1 (en) 2009-01-26 2009-01-26 Central fitting for a fire extinguisher
AT09100073T ATE515293T1 (en) 2009-01-26 2009-01-26 CENTRAL FACTORY FOR A FIRE EXTINGUISHER
EP10189113A EP2277601B1 (en) 2009-01-26 2009-01-26 Base body of a central fitting for a fire extinguisher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09100073A EP2210644B1 (en) 2009-01-26 2009-01-26 Central fitting for a fire extinguisher

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP10189113.3 Division-Into 2010-10-27

Publications (2)

Publication Number Publication Date
EP2210644A1 true EP2210644A1 (en) 2010-07-28
EP2210644B1 EP2210644B1 (en) 2011-07-06

Family

ID=40636129

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09100073A Active EP2210644B1 (en) 2009-01-26 2009-01-26 Central fitting for a fire extinguisher
EP10189113A Active EP2277601B1 (en) 2009-01-26 2009-01-26 Base body of a central fitting for a fire extinguisher

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10189113A Active EP2277601B1 (en) 2009-01-26 2009-01-26 Base body of a central fitting for a fire extinguisher

Country Status (2)

Country Link
EP (2) EP2210644B1 (en)
AT (2) ATE527030T1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106751795A (en) * 2016-11-28 2017-05-31 马鞍山市天睿实业有限公司 A kind of inexpensive fire extinguisher Plastic valve and preparation method thereof
CN106553318A (en) * 2016-11-28 2017-04-05 马鞍山市天睿实业有限公司 A kind of preparation method of fire extinguisher Valve with luminous coating
CN106481870A (en) * 2016-11-28 2017-03-08 马鞍山市天睿实业有限公司 A kind of extinguisher valve plastics push rod and preparation method thereof

Citations (7)

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Publication number Priority date Publication date Assignee Title
GB273202A (en) * 1927-02-11 1927-06-30 Wilhelm Friedrich Improvements in dry fire-extinguishers
DE6917885U (en) * 1969-04-14 1969-09-25 Fireward Limites FIRE EXTINGUISHER
DE2659113A1 (en) 1976-12-28 1978-07-06 Hahn Metallbau Gmbh Hand held fire extinguisher - has propellant gas cylinder and controls mounted separated by plastic seal from extinguishing agent
DE3733224A1 (en) * 1986-10-01 1988-04-14 Preussag Ag Bauwesen Hand-held fire extinguisher
EP0867205A1 (en) 1997-03-26 1998-09-30 Gloria-Werke H. Schulte-Frankenfeld GmbH & Co. Portable chargeable fire extinguisher
EP1044704A1 (en) 1999-04-15 2000-10-18 HTM Sport- und Freizeitgeräte Gesellschaft m.b.H. Fire extinguisher
DE20210704U1 (en) * 2002-07-11 2002-09-26 Vti Ventil Technik Gmbh Safety device for an extinguishing agent container

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Publication number Priority date Publication date Assignee Title
GB1603085A (en) * 1977-06-03 1981-11-18 Ciba Geigy Uk Ltd Fire protection means
DE50004661D1 (en) * 2000-09-20 2004-01-15 Ti Automotive Fuldabrueck Gmbh Coupling, in particular quick coupling, for fuel pipe sections
EP1855067A3 (en) * 2006-05-09 2013-05-01 Gealan Formteile GmbH Attachment and connection module

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB273202A (en) * 1927-02-11 1927-06-30 Wilhelm Friedrich Improvements in dry fire-extinguishers
DE6917885U (en) * 1969-04-14 1969-09-25 Fireward Limites FIRE EXTINGUISHER
DE2659113A1 (en) 1976-12-28 1978-07-06 Hahn Metallbau Gmbh Hand held fire extinguisher - has propellant gas cylinder and controls mounted separated by plastic seal from extinguishing agent
DE3733224A1 (en) * 1986-10-01 1988-04-14 Preussag Ag Bauwesen Hand-held fire extinguisher
EP0867205A1 (en) 1997-03-26 1998-09-30 Gloria-Werke H. Schulte-Frankenfeld GmbH & Co. Portable chargeable fire extinguisher
EP1044704A1 (en) 1999-04-15 2000-10-18 HTM Sport- und Freizeitgeräte Gesellschaft m.b.H. Fire extinguisher
DE20210704U1 (en) * 2002-07-11 2002-09-26 Vti Ventil Technik Gmbh Safety device for an extinguishing agent container

Also Published As

Publication number Publication date
ATE515293T1 (en) 2011-07-15
EP2277601A1 (en) 2011-01-26
ATE527030T1 (en) 2011-10-15
EP2210644B1 (en) 2011-07-06
EP2277601B1 (en) 2011-10-05

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